The only area where it is legal to use Safe and Sane Fireworks  in Nevada County is in the Nevada City Nevada City limits, and even there there are some restrictions according to Nevada City Fire Chief Sam Goodspeed.

click to listen to Sam Goodspeed

Goodspeed suggests people use the fireworks on a paved surface with a bucket of water close by. Lately most people have been gathering in the parking lot at Searls Avenue and Argall for a joint party to set off fireworks.
cllick to listen to Sam Goodspeed

Even though Safe and Sane Fireworks are legal to use in Nevada City there is no where to buy they in Nevada City, and that means people would have to transport them from out of the area.   That is actually against the law in the County according to Nevada County Deputy Fire Marshall Terry McMahan.

click to listen to Terry McMahan

A special task force is being set up again this year among fire officials, police and sheriff’s to patrol for the use of illegal fireworks.

click to listen to Terry McMahan
McMahan suggests  people enjoy the  fireworks on the 4th of July by going to  the public show at the Nevada county Fairgrounds, and there are also fireworks displays in Lake Wildwood and Lake of the Pines that are permitted.